Ron's accusatory tone felt very much like a slap in the face -- and after a moment of silence, Percy was fairly certain that that was exactly how Ron had meant it to be.
The over friendly dog was not helping the matter of this moment being extraordinarily awkward. "Well," said Percy, having only the slight grace to turn a muted shade of pink. "Mum will be... Mum. But -- it's quite good? Your job, that is? I mean. An intern to Mr. Stark himself is a pretty high honor...."